Cullen is in California with the Central Pacific Railroad and has to deal with the new workers.
Cullen enlists new workers to help him move a locomotive on a sled.
Cullen must deal with the violence in Chinatown, caused by disgruntled workers.
Cullen attempts to solve a Chinese labor strike. Durant pulls Mickey deeper into Union Pacific business.
Violence breaks out in Chinatown during the festival of Tin Hau Don. Cullen confronts the Swede.
Cullen and Mei travel through the dangerous California wilderness with a precious cargo. Eva nurses Louise back to health.
Cullen and Durant meet up in Salt Lake City to talk to President Grant about the future of the railroad. Swede carries out his plan against the Mormons.